The ToS lines up with specific laws that will very quickly make your point moot. the Computer Misuse Act of 1990 (since the place in question is in the UK) works alongside that ToS - accessing computer systems, networks, or data without permission is not only A breach of the ToS Discord has set forth but also a breach of that law.
The mole shared access credentials - forbidden by Discord's ToS and by UK's law. This is very plain and simple to anyone with half a rasher of logic about them.